diff --git a/src/unicode/utf8/utf8_test.go b/src/unicode/utf8/utf8_test.go
index 69362d2cf1..865167731f 100644
--- a/src/unicode/utf8/utf8_test.go
+++ b/src/unicode/utf8/utf8_test.go
@@ -12,16 +12,6 @@ import (
 	. "unicode/utf8"
 )
 
-// Validate the constants redefined from unicode.
-func init() {
-	if MaxRune != unicode.MaxRune {
-		panic("utf8.MaxRune is wrong")
-	}
-	if RuneError != unicode.ReplacementChar {
-		panic("utf8.RuneError is wrong")
-	}
-}
-
 // Validate the constants redefined from unicode.
 func TestConstants(t *testing.T) {
 	if MaxRune != unicode.MaxRune {